Question

Which type of firing are required reduction firing? A. Bisque Firing
B. Crystal Firing
C. Obvara Firing
D. Raku Firing
E. Pit Firing

• A. B, C and E Only
• B. A, C and D Only
• C. E, D and B Only
• D. C, D and E Only

Hint:

Logic Tip: Reduction firing techniques usually involve smoke, combustible material, and oxygen reduction.

Answer 1

The Correct Option is D

Concept:
Reduction firing is a ceramic firing process where oxygen inside the kiln is reduced, producing unique surface colours and smoke effects.
•

Step 1:
Obvara firing involves rapid post-firing reduction effects using organic mixtures. Thus: \[ C \text{ is correct} \]
•

Step 2:
Raku firing is one of the best-known reduction firing techniques where hot pottery is placed into combustible materials. Thus: \[ D \text{ is correct} \]
•

Step 3:
Pit firing creates smoke and reduction effects through limited oxygen combustion. Thus: \[ E \text{ is correct} \]
•

Step 4:
Bisque firing is an oxidizing pre-firing process, while crystal firing focuses mainly on crystalline glaze development. \[ \boxed{\text{(4) C, D and E Only}} \]